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Back film for attaching flexible display panel, display device and attaching method

A flexible display and flexible panel technology, applied in the direction of identification devices, instruments, etc., can solve the problems of R-angle wrinkles, defects, and the display panel is attached to the inner side of the cover glass, so as to improve the bonding effect and improve the use performance Effect

Active Publication Date: 2020-07-14
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although OLED and other display panels using flexible substrates have good flexibility, they can meet the requirements of curved display products and even four-sided curved display products (including four side walls and four R corners), but the existing bonding methods are difficult. Attach the display panel to the inner side of the cover glass in the area where the curved edges meet. For example, serious wrinkles will occur at the R corner during lamination.
This problem will lead to the breakage of the internal circuit of the flexible screen and cause poor display
[0003] Therefore, the current back film, display device and bonding method for flexible display panel bonding still need to be improved.

Method used

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  • Back film for attaching flexible display panel, display device and attaching method
  • Back film for attaching flexible display panel, display device and attaching method
  • Back film for attaching flexible display panel, display device and attaching method

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] In the description of the present invention, the orientations or positional relationships indicated by the terms "upper", "lower" and the like are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and do not require that the present invention must be based on a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention.

[0029] In one aspect of the present invention, the pr...

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Abstract

The invention discloses a back film for attaching a flexible display panel, a display device and an attaching method. The back film comprises: a flexible base material, wherein the elastic modulus ofa material forming the flexible base material is smaller than 150 MPa; a double-faced adhesive tape layer which is located on one side of the flexible base material; and a reducible adhesive layer which is positioned on one side, which is not provided with the double-sided adhesive layer, of the flexible base material. Therefore, the back film has enough flexibility, and can support the flexible display panel to be attached to the curved surface cover plate glass or even the four-side curved surface cover plate glass.

Description

technical field [0001] The invention relates to the field of display, in particular to a back film for laminating flexible display panels, a display device and a laminating method. Background technique [0002] With the rapid development of display technology, the types of display products are also enriched. Among many types of display products, 3D display devices are favored by more and more consumers. With the improvement of users' requirements for the display effect of monitors, curved display products cater to the needs of customers. Although OLED and other display panels using flexible substrates have good flexibility, they can meet the requirements of curved display products and even four-sided curved display products (including four side walls and four R corners), but the existing bonding methods are difficult. Attach the display panel to the inner side of the cover glass in the area where the curved edges meet, for example, serious wrinkles will occur at the R corn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30
CPCG09F9/301
Inventor 石佳凡陈立强王作家王亚明孙阔
Owner BOE TECH GRP CO LTD
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